Add failing spec for color input

At present when attempting to set a value on a color input, the value is
always set to "#000000" not matter what value you attempt to set it to.

spec/integration/session_spec.rb

@@ -241,6 +241,12 @@
           FileUtils.rm_f(filename)
         end
       end
+
+      it "sets a value for a color input" do
+        element = @session.find(:css, "#change_me_color")
+        element.set("#ddeeff")
+        expect(element.value).to eq("#ddeeff")
+      end
     end
 
     describe "Node#visible" do

spec/support/views/with_js.erb

@@ -38,6 +38,7 @@
       <input type="text" name="change_me_withname" id="change_me_withname">
     </p>
     <p><input type="file" name="change_me_file" id="change_me_file"></p>
+    <p><input type="color" name="change_me_color" id="change_me_color"></p>
     <p id="changes"></p>
     <p id="changes_on_input"></p>
     <p id="changes_on_keydown"></p>